CN103517647A - Article of footwear incorporating knitted component - Google Patents

Abstract

An article of footwear (100) may include an upper (120) incorporating a knitted component (130). An inlaid strand (132) extends through the knitted component. A combination feeder (220) may be used to inlay the strand into the knitted component.

Description

Articles of footwear incorporating knitted components

background

Conventional articles of footwear generally include two primary elements, an upper and a sole structure. The upper is secured to the sole structure and forms a void within the interior of the footwear to comfortably and securely receive the foot. The sole structure is secured to a lower region of the upper so as to be positioned between the upper and the ground. In athletic footwear, for example, the sole structure may include a midsole and an outsole. Footwear midsoles often include polymer foam that attenuates ground reaction forces to reduce stress on the foot and leg during walking, running, and other ambulatory activities. Additionally, the midsole may include fluid-filled chambers, plates, adjusters, or other elements that further attenuate forces, enhance stability, or affect foot motion. The outsole is secured to the lower surface of the midsole and provides the ground-engaging portion of the sole structure formed from a durable and wear-resistant material such as rubber. The sole structure may also include a sockliner positioned within the cavity and proximate the lower surface of the foot to enhance the comfort of the footwear.

The upper extends generally over the instep and toe areas of the foot, along the medial and lateral sides of the foot, under the foot, and around the heel area of the foot. In some articles of footwear, such as basketball footwear and boots, the upper may extend up and around the ankle to provide support or protection for the ankle. Access to the void inside the upper is typically provided by an ankle opening in the heel region of the footwear. A lacing system is often incorporated into the upper to adjust the fit of the upper, allowing the foot to enter and exit the cavity within the upper. The lacing system also allows the wearer to vary some dimensions of the upper, particularly girth, to accommodate the foot in varying dimensions. Additionally, the upper may include a tongue that extends below the lacing system to enhance the adjustability of the footwear, and the upper may incorporate a heel counter to limit movement of the heel.

Various material elements (eg, textiles, polymer foams, polymer sheets, leather, synthetic leather) are commonly used to manufacture shoe uppers. In athletic footwear, for example, an upper may have multiple layers that each include multiple connected material elements. As examples, material elements may be selected to impart stretch resistance, abrasion resistance, flexibility, breathability, compressibility, comfort, and moisture management to different regions of the upper. In order to impart different properties to different areas of the upper, material elements are often cut into desired shapes and then joined together, usually using stitching or an adhesive bond. Also, material elements are often connected in a layered configuration to impart multiple properties to the same area. As the number and types of material elements incorporated into an upper increase, the time and expense associated with shipping, storing, cutting, and joining the material elements may also increase. Waste material from cutting and stitching processes also accumulates to a greater extent as the number and types of material elements incorporated into the upper increase. Also, uppers with a greater number of material elements may be more difficult to recycle than uppers formed from fewer types and numbers of material elements. Thus, by reducing the number of material elements used in the upper, waste can be reduced while increasing the manufacturing efficiency and recyclability of the upper.

overview

An article of footwear having an upper and a sole structure secured to the upper is disclosed below. The knitted component of the upper includes fusible and non-fusible yarns that are woven together to form a plurality of interlocking layers that define courses and wales. meshed coils. The knitted component also includes an inlaid strand extending along at least one of the courses.

The following discussion also discloses an article of footwear having an upper including a knit element, an inlaid strand, and a lace. The knit element defines an exterior surface of the upper and a portion of an opposing interior surface of the upper, wherein the interior surface defines a cavity for receiving a foot. A knit element extends from a throat area of the upper to a lower area of the upper, and the knit element defines a plurality of apertures within the throat area. An inlaid strand extends through the knit element from the throat region to the lower region. The inlaid wire also extends at least partially around the aperture in the throat region, and the inlaid wire is located between the outer surface and the inner surface of the throat region. Laces extend through the holes.

Additionally, an article of footwear having an upper including a first knit layer, a second knit layer, and a plurality of floating yarns is disclosed below. The first knit layer forms at least a portion of an outer surface of the upper. The second knit layer is formed of a unitary knit structure with the first knit layer, and the second knit layer is positioned adjacent to the first knit layer and is at least partially coextensive with the first knit layer to define the first knit layer and the second knit layer between the tubes. The floating yarns are located within the tube and extend in a direction substantially parallel to the first braid layer and the second braid layer. Also, the first knit layer and the second knit layer are at least partially formed from yarns stretched at least 100%.

The advantages and novel features of the invention are pointed out with particularity in the appended claims. For an improved understanding of the advantages and novel features, however, reference is made to the following descriptive matter and accompanying drawings, which describe and illustrate various constructions and concepts related to the invention.

Description of drawings

The foregoing Summary and the following Detailed Description are better understood when read with the accompanying figures.

Figure 1 is a perspective view of an article of footwear.

Figure 2 is a lateral elevation view of the article of footwear.

3 is a medial side elevation view of the article of footwear.

4A-4C are cross-sectional views of the article of footwear as defined by section lines 4A-4C as in FIGS. 2 and 3 .

5 is a top view of a first knitted component forming a portion of an upper of an article of footwear.

Fig. 6 is a bottom view of the first knitted component.

7A-7E are cross-sectional views of the first knitted component as defined by section lines 7A-7E in FIG. 5 .

8A and 8B are plan views showing the knitted structure of the first knitted component.

9 is a top view of a second knitted component that may form a portion of an upper of an article of footwear.

Fig. 10 is a bottom view of the second knitted component.

11 is a schematic top view of a second knitted component showing a knit region.

12A-12E are cross-sectional views of the second knitted component as defined by section lines 12A-12E as in FIG. 9 .

13A-13H are loop diagrams of braided regions.

14A-14C are top views corresponding with FIG. 5 and depicting further configurations of the first knitted component.

Figure 15 is a perspective view of a knitting machine.

16-18 are front views of a combination feeder in a knitting machine.

Figure 19 is a front view corresponding to Figure 16 and showing the internal components of the combination feeder.

20A-20C are front views corresponding to FIG. 19 and showing the operation of the combination feeder.

21A-21I are exemplary perspective views of a knitting process using a combination feeder and a conventional feeder.

22A-22C are exemplary cross-sectional views of a knitting process showing the positions of combination feeders and conventional feeders.

Fig. 23 is an exemplary perspective view showing another aspect of the weaving process.

Figure 24 is a perspective view of another configuration of the knitting machine.

A detailed description

The following discussion and accompanying figures disclose several concepts related to knitted components and the manufacture of knitted components. While knitted components may be used in a variety of products, an article of footwear incorporating one of the knitted components is disclosed below as an example. In addition to footwear, knitted components can be used in other types of clothing (e.g., shirts, pants, socks, jackets, underwear), sports equipment (e.g., golf bags, baseball and soccer gloves, soccer restraints) , containers (eg, backpacks, bags), and upholstery for furniture (eg, chairs, sofas, car seats). Woven components can also be used in bed covers (eg, sheets, blankets), table covers, towels, flags, tents, sails, and parachutes. Woven components can be used as industrial fabrics for industrial purposes (including structures for automotive and aerospace applications), filter materials, medical fabrics (e.g., bandages, swabs, implants), geotextiles for reinforcing embankments, Agricultural fabrics for crop protection, and industrial clothing for protection or insulation from heat and radiation. Accordingly, knitted components, as well as other concepts disclosed herein, may be incorporated into a variety of products for both personal and industrial purposes.

footwear construction

Article of footwear 100 including sole structure 110 and upper 120 is depicted in FIGS. 1-4C . While footwear 100 is illustrated as having a general configuration suitable for running, concepts related to footwear 100 can also be applied to a variety of other athletic footwear types, including, for example, baseball shoes, basketball shoes, bicycle shoes, football shoes , tennis shoes, soccer shoes, training shoes, walking shoes and hiking boots. Concepts can also be applied to types of footwear generally considered non-athletic, including dress shoes, loafers, sandals, and work boots. Accordingly, the concepts disclosed with respect to footwear 100 apply to a variety of footwear types.

For reference purposes, footwear 100 may be divided into three general regions: forefoot region 101 , midfoot region 102 , and heel region 103 . Forefoot region 101 generally includes portions of footwear 100 that correspond to the toes and the joints that connect the metatarsals to the phalanges. Midfoot region 102 generally includes a portion of footwear 100 that corresponds to an arch area of the foot. Heel region 103 generally corresponds to the rear portion of the foot including the calcaneus. Footwear 100 also includes lateral side 104 and medial side 105 that extend through each of regions 101 - 103 and correspond to opposing sides of footwear 100 . More specifically, lateral side 104 corresponds to the outer area of the foot (i.e., the surface facing away from the other foot), and medial side 105 corresponds to the inner area of the foot (i.e., the surface facing the other foot) . Regions 101 - 103 and sides 104 - 105 are not intended to precisely delineate regions of footwear 100 . Rather, areas 101-103 and sides 104-105 are used to represent general areas of footwear 100 to aid in the discussion below. In addition to footwear 100, regions 101-103 and sides 104-105 may also be applied to sole structure 110, upper 120, and individual elements thereof.

Sole structure 110 is secured to upper 120 and extends between the foot and the ground when footwear 100 is worn. The main elements of sole structure 110 are midsole 111 , outsole 112 and insole 113 . Midsole 111 is secured to the lower surface of upper 120 and may be formed from a compressible polymer foam element (eg, polyurethane or ethylvinylacetate foam) that, during walking, running, or other ambulatory activities, The compressible polymer foam element attenuates ground reaction forces (ie, provides cushioning) when compression occurs between the foot and the ground. In a further configuration, midsole 111 may incorporate plates, regulators, fluid-filled chambers, persistent elements, or motion control members that further attenuate forces, enhance stability, or affect motion of the foot, and midsole 21 may consist primarily of A fluid-filled chamber is formed. Outsole 112 is secured to a lower surface of midsole 111 and may be formed from a wear-resistant rubber material that is textured to impart traction. Sockliner 113 is located in upper 120 and is positioned to extend beneath a lower surface of the foot to enhance the comfort of footwear 100 . While this configuration for sole structure 110 provides an example of a sole structure that may be used in connection with upper 120 , a variety of other conventional or non-conventional configurations for sole structure 110 may also be used. Accordingly, the characteristics of sole structure 110, or any sole structure, used with upper 120 may vary significantly.

Upper 120 defines a void in footwear 100 for receiving and securing a foot relative to sole structure 110 . The void is shaped to receive the foot and extends along the lateral side of the foot, along the medial side of the foot, over the foot, around the heel, and under the foot. Access to the void is provided through an ankle opening 121 located in at least heel region 103 . Lace 122 extends through a plurality of lace apertures 123 in upper 120 and allows the wearer to vary the size of upper 120 to accommodate the size of the foot. More specifically, lace 122 allows the wearer to tighten upper 120 around the foot, and lace 122 allows the wearer to loosen upper 120 to facilitate entry and exit of the foot from the void (i.e., through the ankle opening 121). Additionally, upper 120 includes tongue 124 that extends beneath lace 122 and lace apertures 123 to enhance the comfort of footwear 100 . In a further construction, upper 120 may include additional elements such as (a) a heel counter for enhanced stability in heel region 103 , (b) a heel counter made of wear-resistant material in forefoot region 101 . Formed toe guards, and (c) logos, trademarks, and placards with caution instructions and material information.

The upper of many conventional footwear is formed from multiple material elements (eg, fabric, polymer foam, polymer sheet, leather, synthetic leather) joined by, for example, stitching or bonding. Instead, the majority of upper 120 is formed by knitted component 130 that extends across each of regions 101-103, along lateral side 104 and medial side 105, over forefoot region 101, and around the heel. region 103 to extend. Additionally, knitted component 130 forms portions of an exterior surface and an opposing interior surface of upper 120 . As such, knitted component 130 defines at least a portion of a void in upper 120 . In some configurations, knitted component 130 may also extend under the foot. However, referring to FIGS. 4A-4C , strobel sock 125 is secured to knitted component 130 and the upper surface of midsole 111 to form a portion of upper 120 that extends beneath insole 113 .

Construction of Woven Parts

Knitted component 130 is depicted separately from the remainder of footwear 100 in FIGS. 5 and 6 . Knitted component 130 is formed from a single knit structure. As used herein, a knitted component (eg, knitted component 130 ) is defined as being formed from a "unitary knit structure" when it is formed as a one-piece element through a knitting process. That is, the knitting process substantially forms the respective features and structures of knitted component 130 without significant additional manufacturing steps or processes. Although portions of knitted component 130 may be joined to one another (eg, the edges of knitted component 130 are joined together) after the knitting process, knitted component 130 is still formed of a unitary knit structure because it is formed as a one-piece knit element. Also, knitted component 130 is still formed from a single knit structure when other elements are added after the knitting process (eg, laces 122, tongue 124, logos, trademarks, placards with cautionary instructions and material information).

The primary elements of knitted component 130 are knit element 131 and inlaid strand 132 . Knit element 131 is formed from at least one yarn that is manipulated (eg, using a knitting machine) to form a plurality of intermeshing loops that define a plurality of courses and wales. That is, the knitted element 131 has a structure of knitted fabric. Inlaid strand 132 extends through knit element 131 and passes between a plurality of loops in knit element 131 . While inlaid strand 132 generally extends along courses in knit element 131 , inlaid strand 132 may also extend along wales in knit element 131 . Advantages of inlaid wire 132 include providing support, stability, and structure. For example, inlaid strands 132 help secure upper 120 around the foot, limit deformation in regions of upper 120 (eg, impart stretch resistance), and operate in conjunction with lace 122 to enhance the fit of footwear 100 .

Knit element 131 has a generally U-shaped configuration outlined by a peripheral edge 133 , a pair of heel edges 134 , and an interior edge 135 . When incorporated into footwear 100 , peripheral edge 133 rests against the upper surface of midsole 111 and is connected to strobel liner 125 . Heel edges 134 are connected to each other and extend vertically in heel region 103 . In some configurations of footwear 100 , a material element may cover the seam between heel edge 134 to strengthen the seam and enhance the aesthetic appeal of footwear 100 . Inner edge 135 forms ankle opening 121 and extends forwardly to the area where lace 122 , lace apertures 123 and tongue 124 are located. Additionally, knit element 131 has a first surface 136 and an opposing second surface 137 . First surface 136 forms a portion of an exterior surface of upper 120 , and second surface 137 forms a portion of an interior surface of upper 120 , thereby defining at least a portion of a cavity in upper 120 .

As noted above, inlaid strand 132 extends through knit element 131 and passes between the plurality of loops in knit element 131 . More specifically, inlaid strand 132 is located within the knit structure of knit element 131, which may have the configuration of a single fabric layer in the region of inlaid strand 132 and between surfaces 136 and 137, as in FIGS. 7A-7D as depicted. Accordingly, inlaid strand 132 is positioned between the exterior and interior surfaces of upper 120 when knitted component 130 is incorporated into footwear 100 . In some configurations, portions of inlaid strand 132 may be visible or exposed on one or both of surfaces 136 and 137 . For example, inlaid strand 132 may be placed against one of surfaces 136 and 137, or knit element 131 may form an indentation or hole through which inlaid strand passes. An advantage of having inlaid strand 132 between surfaces 136 and 137 is that knit element 131 protects inlaid strand 132 from fraying and snagging.

Referring to FIGS. 5 and 6 , the inlaid strand 132 is repeated from the peripheral edge 133 to the inner edge 135 and adjacent one side of the lace hole 123 , at least partially around the lace hole 123 to the opposite side, and back to the peripheral edge 133 . extend. When knitted component 130 is incorporated into footwear 100 , knit element 131 extends from the throat area of upper 120 (ie, the area where lace 122 , lace apertures 123 , and tongue 124 are located) to the lower portion of upper 120 region (ie, the region where knit element 131 is attached to sole structure 110 ). In this configuration, inlaid strand 132 also extends from the throat region to the lower region. More specifically, inlaid strand iteratively passes through knit element 131 from the throat region to the lower region.

While knit element 131 may be formed in a variety of ways, the courses of knit structure generally extend in the same direction as inlaid strand 132 . That is, the courses may extend in a direction extending between the throat region and the lower region. As such, a substantial portion of inlaid strand 132 extends along the course in knit element 131 . However, inlaid strand 132 may also extend along a wale in knit element 131 in a region adjacent lace aperture 123 . More specifically, segments of inlaid strand 132 that are parallel to inner edge 135 may extend along the wales.

As discussed above, inlaid strand 132 is repeatedly threaded through knit element 131 . Referring to FIGS. 5 and 6 , inlaid strand 132 also repeatedly exits knit element 131 at peripheral edge 133 and then re-enters knit element 131 at another location on peripheral edge 133 , thereby forming loops along peripheral edge 133 . An advantage of this configuration is that each segment of inlaid strand 132 extending between the throat region and the lower region may be independently tensioned, loosened, or otherwise adjusted during the manufacturing process of footwear 100 . That is, the segments of inlaid strand 132 may be independently adjusted to an appropriate tension prior to securing sole structure 110 to upper 120 .

Inlaid strand 132 may exhibit greater resistance to stretch than knit element 131 . That is, the stretch of inlaid strand 132 may be less than the stretch of knit element 131 . Considering that multiple segments of inlaid strand 132 extend from the throat region of upper 120 to the lower region of upper 120 , inlaid strand 132 imparts stretch resistance to the portion of upper 120 between the throat region and the lower region. . Also, applying tension to lace 122 may impart tension to inlaid strand 132 such that the portion of upper 120 between the throat region and the lower region rests against the foot. As such, inlaid strand 132 operates in conjunction with lace 122 to enhance the fit of footwear 100 .

Knit element 131 may incorporate multiple types of yarns that impart different properties to individual regions of upper 120 . That is, one region of knit element 131 may be formed from a first type of yarn that imparts a first set of properties, and another region of knit element 131 may be formed from a second type of yarn that imparts a first set of properties. The second type of yarn imparts a second set of properties. In this configuration, performance may be varied throughout upper 120 by selecting specific yarns for different regions of knit element 131 . The properties that a particular type of yarn will impart to regions of knit element 131 depend in part on the materials that form the various filaments and fibers in the yarn. For example, cotton provides a soft feel, natural aesthetics, and biodegradability. Elastane and stretch polyester each provide considerable stretch and rebound, with stretch polyester also providing recyclability. Rayon provides high shine and moisture absorption. Wool offers high moisture absorption in addition to insulating properties and biodegradability. Nylon is a durable and abrasion resistant material with relatively high strength. Polyester is a hydrophobic material that also offers relatively high durability. In addition to material, other aspects of the yarn selected for knit element 131 may also affect the performance of upper 120 . For example, the yarns forming knit element 131 may be monofilament yarns or multifilament yarns. Yarns may also include individual filaments each formed from a different material. Additionally, the yarn may include filaments each formed from two or more different materials, such as a bicomponent yarn in which the filaments have a sheath-core construction or two halves formed from different materials. Different degrees of twisting and hemming as well as different deniers can also affect the performance of upper 120 . Accordingly, the materials from which the yarns are formed and other aspects of the yarns may be selected to impart various properties to individual regions of upper 120 .

As with the yarns forming knit element 131, the configuration of inlaid strand 132 may vary significantly. In addition to yarn, inlaid strand 132 may have a configuration such as a filament (eg, monofilament), thread, rope, belt, cable, or chain. Inlaid strand 132 may be greater in thickness than the yarns forming knit element 131 . In some constructions, inlaid strand 132 may have a substantially greater thickness than the yarns of knit element 131 . While the cross-sectional shape of inlaid wire 132 may be circular, triangular, square, rectangular, oval, or irregular shapes may also be used. Also, the material forming inlaid strand 132 may include any of the materials used for the yarns within knit element 131, such as cotton, elastane, polyester, rayon, wool, and nylon. As noted above, inlaid strand 132 may exhibit greater resistance to stretch than knit element 131 . As such, suitable materials for inlay wire 132 may include a variety of engineered filaments for high tensile strength applications, including glass, aramids (e.g., para-aramid) and meta-aramid), very high molecular weight polyethylene, and liquid crystal polymers. As another example, a braided polyester thread may also be used as inlaid thread 132 .

An example of a suitable configuration for a portion of knitted component 130 is depicted in FIG. 8A. In this configuration, knit element 131 includes yarn 138 that forms a plurality of intermeshing loops that define a plurality of horizontal courses and vertical wales. Inlaid strand 132 extends along one of the courses and alternates between being located (a) behind the loops formed by yarn 138 and (b) in front of the loops formed by yarn 138 . In effect, inlaid strand 132 weaves through the structure formed by knit elements 131 . While yarn 138 forms each of the courses in this configuration, additional yarns may form or may form part of one or more of the courses.

Another example of a suitable configuration for a portion of knitted component 130 is depicted in FIG. 8B. In this configuration, knit element 131 includes yarn 138 and additional yarn 139 . Yarns 138 and 139 are plated and cooperatively form a plurality of intermeshing loops defining a plurality of horizontal courses and vertical wales. That is, yarns 138 and 139 run parallel to each other. As with the configuration in FIG. 8A , inlaid strand 132 extends along one of the courses and is located (a) behind the loops formed by yarns 138 and 139 and (b) in front of the loops formed by yarns 138 and 139 alternate between. An advantage of this configuration is that the properties of each of yarns 138 and 139 may be present in this area of knitted component 130 . For example, yarns 138 and 139 may have different colors, where the color of yarn 138 appears primarily on the front side of the different stitches in knit element 131 and the color of yarn 139 appears primarily on the different threads in knit element 131 back of the trace. As another example, yarn 139 may be formed from a yarn that is more soft and comfortable against the foot than yarn 138, wherein yarn 138 is primarily present on first surface 136 and yarn 139 is primarily present on the second surface 136. on the surface 137 .

Continuing with the configuration of FIG. 8B , yarn 138 may be formed from at least one of a thermosetting polymer material and a natural fiber (eg, cotton, wool, silk), while yarn 139 may be formed from a thermoplastic polymer material. Generally, thermoplastic polymer materials melt when heated and return to a solid state when cooled. More specifically, the thermoplastic polymer material transitions from a solid state to a softened or liquid state when subjected to sufficient heat, and then transitions from the softened or liquid state to a solid state when sufficiently cooled. As such, thermoplastic polymer materials are often used to join two objects or elements together. In this case, yarn 139 may be used, for example, to (a) join one portion of yarn 138 to another portion of yarn 138, (b) join yarn 138 and inlaid strand 132 to each other, or (c ) connects another element (eg, logos, trademarks, and placards with caution instructions and material information) to knitted component 130 . As such, yarn 139 may be considered a fusible yarn, given that it may be used to fuse or otherwise join portions of knitted component 130 to one another. Also, yarn 138 may be considered a non-fusible yarn, provided it is not formed of a material that would normally be capable of melting or otherwise joining portions of knitted component 130 to each other. That is, yarn 138 may be a non-fusible yarn and yarn 139 may be a fusible yarn. In some configurations of knitted component 130 , yarn 138 (i.e., non-fusible yarn) can be formed substantially from a thermoset polyester material, and yarn 139 (i.e., a fusible yarn) can be formed at least in part from a thermoplastic Formed of polyester material.

The use of core-filled yarns gives knitted component 130 an advantage. This process may have the effect of hardening or solidifying the structure of knitted component 130 as yarn 139 is heated and fused to yarn 138 and inlaid strand 132 . Also, (a) joining one portion of yarn 138 to another portion of yarn 138 or (b) joining yarn 138 and inlaid strand 132 to each other has the effect of fixing or locking the relative positions of yarn 138 and inlaid strand 132, Thereby imparting tensile resistance and hardness. That is, portions of yarn 138 may not slide relative to each other when fused with yarn 139, thereby preventing bending or permanent stretching of knit element 131 due to relative movement of the knit structure. Another benefit relates to limiting unraveling if a portion of knitted component 130 is damaged or one of yarns 138 breaks. Likewise, inlaid strand 132 may not slide relative to knit element 131 , thereby preventing portions of inlaid strand 132 from being pulled outwardly from knit element 131 . Accordingly, regions of knitted component 130 may benefit from the use of both fusible and non-fusible yarns in knit element 131 .

Another aspect of knitted component 130 relates to a padded area that extends adjacent to and at least partially around ankle opening 121 . Referring to Figure 7E, the stuffed area is formed by two overlapping and at least partially coextensive knit layers 140, which may be formed from a single knit structure, and a plurality of floating yarns 141 extending between the knit layers 140. While the sides or edges of the braid 140 are secured to each other, the central region is generally unsecured. In this manner, braid layers 140 effectively form a tube or tubular structure, and floating yarns 141 may be positioned or embedded between braid layers 140 to pass through the tubular structure. That is, the floating yarns 141 extend between the braid layers 140 generally parallel to the surfaces of the braid layers 140 , and also pass through and fill the interior volume between the braid layers 140 . Whereas the majority of knit element 131 is formed from yarns that are mechanically manipulated to form intermeshed loops, floating yarns 141 are generally free or otherwise embedded within the interior volume between knit layers 140 . As a further matter, braided layer 140 may be at least partially formed from drawn yarns. An advantage of this configuration is that the knit layer will effectively compress the floating yarns 141 and provide elastic form to the padded area adjacent the ankle opening 121 . That is, stretched yarns in knit layer 140 may be under tension during the knitting process of forming knitted component 130 such that knit layer 140 compresses floating yarns 141 . While the degree of stretch in stretched yarns can vary significantly, stretched yarns can stretch at least 100% in many configurations of knitted component 130 .

The presence of floating yarns 141 imparts a compressible configuration to the padded area adjacent ankle opening 121 , thereby enhancing the comfort of footwear 100 in the area of ankle opening 121 . Many conventional articles of footwear incorporate polymer foam elements or other compressible materials in the area adjacent the ankle opening. Portions of knitted component 130 formed of a unitary knit construction with other portions of knitted component 130 may form a padded area adjacent ankle opening 121 as compared to conventional articles of footwear. In further configurations of footwear 100 , similar areas of padding may be located in other areas of knitted component 130 . For example, a similar area of padding may be positioned corresponding to the area of the joint between the metatarsals and the proximal phalanges to impart padding to the joint. Alternatively, a loop loop structure may also be used to impart a degree of padding to areas of upper 120 .

Based on the above discussion, knitted component 130 imparts various features to upper 120 . Moreover, knitted component 130 provides several advantages over some conventional upper constructions. As noted above, conventional footwear uppers are formed from multiple material elements (eg, fabric, polymer foam, polymer sheet, leather, synthetic leather) joined by, for example, stitching or bonding. As the number and types of material elements incorporated into an upper increase, the time and expense associated with shipping, storing, cutting, and joining the material elements may also increase. Waste material from cutting and stitching processes also accumulates to a greater extent as the number and types of material elements incorporated into the upper increase. Also, uppers with a greater number of material elements may be more difficult to recycle than uppers formed from fewer types and numbers of material elements. Thus, by reducing the number of material elements used in the upper, waste can be reduced while increasing the manufacturing efficiency and recyclability of the upper. To this end, knitted component 130 forms a majority of upper 120 while increasing manufacturing efficiency, reducing waste, and simplifying recyclability.

Construction of additional knitted components

Knitted component 150 is depicted in FIGS. 9 and 10 and may be used in place of knitted component 130 in footwear 100 . The primary elements of knitted component 150 are knit element 151 and inlaid strand 152 . Knit element 151 is formed from at least one yarn that is manipulated (eg, using a knitting machine) to form a plurality of intermeshing loops defining a plurality of courses and wales. That is, the knitted element 151 has a structure of knitted fabric. Inlaid strand 152 extends through knit element 151 and passes between a plurality of loops in knit element 151 . While inlaid strand 152 generally extends along courses in knit element 151 , inlaid strand 152 may also extend along wales in knit element 151 . Like inlaid strand 132 , inlaid strand 152 imparts stretch resistance and, when incorporated into footwear 100 , operates in conjunction with lace 122 to enhance the fit of footwear 100 .

Knit element 151 has a generally U-shaped configuration outlined by a peripheral edge 153 , a pair of heel edges 154 , and an interior edge 155 . Additionally, knit element 151 has a first surface 156 and an opposing second surface 157 . First surface 156 may form a portion of an exterior surface of upper 120 , while second surface 157 may form a portion of an interior surface of upper 120 , thereby defining at least a portion of a cavity in upper 120 . In many configurations, knit element 151 may have a single layer of fabric construction in the region of inlaid strand 152 . That is, knit element 151 may be a single layer of fabric between surfaces 156 and 157 . Additionally, knit element 151 defines a plurality of lace apertures 158 .

Similar to inlaid strand 132 , inlaid strand 152 iteratively extends from peripheral edge 153 toward interior edge 155 , at least partially around one of lace apertures 158 , and back to peripheral edge 153 . However, some portions of inlaid strand 152 are angled rearwardly compared to inlaid strand 132 and extend to heel edge 154 . More specifically, the portion of inlaid thread 152 associated with rearmost lace aperture 158 goes from one of heel edge 154 toward inner edge 155, at least partially around one of rearmost lace aperture 158, and back. to one of the heel edges 154. Additionally, some portions of inlaid strand 152 do not extend around one of lace apertures 158 . More specifically, some segments of inlaid strand 152 extend toward interior edge 155 , turn in a region adjacent one of lace apertures 158 , and extend back toward one of peripheral edge 153 or heel edge 154 .

While knit element 151 may be formed in a variety of ways, the courses of knit structure generally extend in the same direction as inlaid strand 152 . However, inlaid strand 152 may also extend along a wale in knit element 151 in a region adjacent lace aperture 158 . More specifically, segments of inlaid strand 152 that are parallel to inner edge 155 may extend along the wale.

Inlaid strand 152 may exhibit greater resistance to stretch than knit element 151 . That is, the stretch of inlaid strand 152 may be less than the stretch of knit element 151 . Given that many segments of inlaid strand 152 extend through knit element 151 , inlaid strand 152 may impart stretch resistance to portions of upper 120 between the throat region and the lower region. Also, applying tension to lace 122 may impart tension to inlaid strand 152 such that the portion of upper 120 between the throat region and the lower region rests against the foot. Additionally, given that many segments of inlaid strand 152 extend toward heel edge 154 , inlaid strand 152 may impart stretch resistance to portions of upper 120 in heel region 103 . Also, applying tension to lace 122 may cause the portion of upper 120 in heel region 103 to rest against the foot. As such, inlaid strand 152 operates in conjunction with lace 122 to enhance the fit of footwear 100 .

Knit element 151 may incorporate any of the various types of yarns discussed above with respect to knit element 131 . Inlaid strand 152 may also be formed from any of the constructions and materials discussed above with respect to inlaid strand 132 . Additionally, the various knit constructions discussed with respect to FIGS. 8A and 8B may also be used for knitted component 150 . More specifically, knit element 151 may have regions formed by a single yarn, two core-filled yarns, or a fusible yarn and a non-fusible yarn, where the fusible yarn (a) will not be fusible A portion of the yarn is attached to another portion of the non-fusible yarn or (b) the non-fusible yarn and the inlaid thread 152 are attached to each other.

The majority of knit element 131 is depicted as being formed from a relatively non-textured fabric and from a plain or unitary knit structure (eg, a tubular knit structure). Rather, knit element 151 incorporates various knit structures that impart properties and advantages characteristic of different regions of knitted component 150 . Moreover, knitted component 150 may impart a range of properties to different regions of upper 120 by combining different yarn types with the knit structure. Referring to Figure 11, a schematic illustration of knitted component 150 shows various zones 160-169 having different knit configurations, each of which will now be discussed in detail. For reference purposes, regions 101 - 103 and sides 104 and 105 are shown in FIG. 11 to provide a reference for the location of knitted regions 160 - 169 when knitted component 150 is incorporated into footwear 100 .

Tubular braided region 160 extends along a majority of peripheral edge 153 and across each of regions 101-103 on both sides 104 and 105. Tubular braided region 160 also extends inwardly from each of sides 104 and 105 at approximately the region of interface regions 101 and 102 to form a forward portion of inner edge 155 . Tubular braided region 160 forms a relatively texture-free braided construction. Referring to FIG. 12A , a cross-section through a region of tubular braid 160 is depicted, and surfaces 156 and 157 are substantially parallel to each other. Tubular knit zone 160 imparts more than 100 advantages to the footwear. For example, tubular knit region 160 has greater durability and wear resistance than some other braided structures, especially when the yarn inserts in tubular knit region 160 have fusible yarns. Additionally, the relatively texture-free topography of tubular knit region 160 simplifies the process of joining strobel sock 125 to peripheral edge 153 . That is, the portion of tubular knit region 160 positioned along peripheral edge 153 facilitates the lasting process of footwear 100 . For reference purposes, FIG. 13A depicts a loop diagram of the manner in which tubular braided region 160 is formed using a braiding process.

Two stretch knit zones 161 extend inwardly from peripheral edge 153 and are positioned corresponding to the location of the joints between the metatarsals and proximal phalanges of the foot. That is, the stretch zone extends inwardly from the peripheral edge in a region located approximately at interface regions 101 and 102 . As with tubular knit zone 160, the knit construction in stretch knit zone 161 may be a tubular knit structure. However, in contrast to tubular knit zone 160 , stretch knit zone 161 is formed from stretch yarns that impart stretch and recovery properties to knitted component 150 . While the degree of stretch in stretched yarns may vary significantly, stretched yarns may stretch at least 100% in many configurations of knitted component 150 .

A tubular and interlock tuck knit zone 162 extends along at least a portion of interior edge 155 in midfoot region 102 . Tubular and interlock tuck stitch knit zone 162 also forms a relatively texture-free knit construction, but has a thicker thickness than tubular knit zone 160 . The cross-section of tubular and interlock tuck weave region 162 is similar to FIG. 12A in which surfaces 156 and 157 are substantially parallel to each other. The tubular and interlock tuck weave zone 162 imparts more than 100 advantages to the footwear. For example, the tubular and interlock tuck weave region 162 has greater resistance to stretch than some other knit structures, and when the shoelace 122 places the tubular and interlock tuck weave region 162 and inlaid strand 152 under tension, It is advantageous. For reference purposes, FIG. 13B depicts a loop diagram of the manner in which tubular and interlock tuck weave zone 162 is formed using a knitting process.

1×1 mesh knit zone 163 is located in forefoot region 101 and is spaced inwardly from peripheral edge 153 . The 1×1 mesh knit zone has a C-shaped configuration and forms a plurality of apertures extending through knit element 151 and from first surface 156 to second surface 157, as depicted in FIG. 12B. Apertures enhance the permeability of knitted component 150 , allowing air to enter upper 120 and moisture to leave upper 120 . For reference purposes, FIG. 13C depicts a loop diagram of the manner in which a 1×1 mesh knit region 163 is formed using a knitting process.

The 2×2 mesh knit region 164 extends adjacent to the 1×1 mesh knit region 163 . Compared to 1×1 mesh knit zone 163 , 2×2 mesh knit zone 164 forms larger pores, which may further enhance the permeability of knitted component 150 . For reference purposes, FIG. 13D depicts a loop diagram of the manner in which the 2x2 mesh knit region 164 is formed using a knitting process.

A 3×2 mesh knit zone 165 is located within the 2×2 mesh knit zone 164 , and another 3×2 mesh knit zone 165 is positioned adjacent to one of the stretch zones 161 . Compared to 1×1 mesh knit regions 163 and 2×2 mesh knit regions 164 , 3×2 mesh knit regions 165 form even larger pores, which may further enhance the permeability of knitted component 150 . For reference purposes, FIG. 13E depicts a loop diagram of the manner in which a 3x2 mesh knit region 165 is formed using a knitting process.

1×1 simulated mesh knit zone 166 is located in forefoot region 101 and extends around 1×1 mesh knit zone 163 . In contrast to mesh knit regions 163-165, which may form holes through knit element 151, 1×1 simulated mesh knit region 166 forms gaps in first surface 156, as depicted in FIG. 12C. In addition to enhancing the aesthetics of footwear 100 , 1×1 simulated mesh knit zones 166 may enhance flexibility and reduce the overall mass of knitted component 150 . For reference purposes, FIG. 13F depicts a loop diagram of the manner in which a 1×1 simulated mesh knit region 166 is formed using a knitting process.

Two 2×2 simulated mesh knit zones 167 are located in heel region 103 and adjacent heel edge 154 . The 2×2 simulated mesh weave region 167 forms a larger indentation in the first surface 156 than the 1×1 simulated mesh weave region 166 . In the region where inlaid strand 152 extends through the indentation in 2x2 simulated mesh knit region 167, as depicted in Figure 12D, inlaid strand 152 may be visible and exposed in the lower region of the indentation. For reference purposes, FIG. 13G depicts a loop diagram of the manner in which a 2x2 simulated mesh knit region 167 is formed using a knitting process.

Two 2×2 mixed knit zones 168 are located in midfoot region 102 and forward of 2×2 simulated mesh knit zone 167 . The 2×2 mixed mesh region 168 shares the characteristics of the 2×2 mesh region 164 and the 2×2 simulated mesh region 167 . More specifically, 2×2 mixed knit zone 168 forms an aperture having the size and configuration of 2×2 mesh knit zone 164, and 2×2 mixed knit zone 168 forms an aperture having the size and configuration of 2×2 mesh knit zone 167. gap. In the region where inlaid strand 152 extends through the gap in 2x2 mixed braid region 168, as depicted in Figure 12E, inlaid strand 152 is visible and exposed. For reference purposes, FIG. 13H depicts a loop diagram of the manner in which a 2x2 mixed knit region 168 is formed using a knitting process.

Knitted component 150 also includes two padding regions 169 having a general configuration of a padding area extending adjacent to ankle opening 121 and extending at least partially around ankle opening 121 above Discussions are made with respect to knitted component 130 . As such, the stuffing region 269 is formed from two overlapping and at least partially coextensive knit layers, which may be formed from a single knit structure, and a plurality of floating yarns extending between the knit layers.

A comparison between FIGS. 9 and 10 shows that most of the texture in knit element 151 is on first surface 156 rather than second surface 157 . That is, gaps formed by simulated mesh knit regions 166 and 167 and gaps in 2×2 mixed knit region 168 are formed in first surface 156 . This configuration has the advantage of enhancing the comfort of footwear 100 . More specifically, this configuration places the relatively texture-free configuration of second surface 157 against the foot. A further comparison between FIGS. 9 and 10 shows that portions of inlaid wire 152 are exposed on first surface 156 , but not on second surface 157 . This configuration also has the advantage of enhancing the comfort of footwear 100 . More specifically, by spacing inlaid strand 152 from the foot through a portion of knit element 151, inlaid strand 152 will not contact the foot.

Additional configurations of knitted component 130 are depicted in FIGS. 14A-14C. Although discussed with respect to knitted component 130 , concepts related to each of these configurations may also be used with knitted component 150 . Referring to FIG. 14A , knitted component 130 is devoid of inlaid strand 132 . While inlaid strand 132 imparts stretch resistance to regions of knitted component 130 , some constructions may not require stretch resistance from inlaid strand 132 . Also, some configurations may benefit from greater stretch in upper 120 . Referring to FIG. 14B , knit element 131 includes two flaps 142 formed of a unitary knit construction with the remainder of knit element 131 and extending along the length of knitted component 130 at peripheral edge 133 . When incorporated into footwear 100 , flap 142 may replace strobel liner 125 . That is, flaps 142 may cooperatively form a portion of upper 120 that extends beneath insole 113 and is secured to the upper surface of midsole 111 . Referring to FIG. 14C , knitted component 130 has a configuration that is confined to midfoot region 102 . In such a configuration, other material elements (eg, fabric, polymer foam, polymer sheet, leather, synthetic leather) may be joined to knitted component 130 by, for example, stitching or bonding to form upper 120 .

Based on the above discussion, each of knitted components 130 and 150 may have various configurations that impart characteristics and advantages to upper 120 . More specifically, knit elements 131 and 151 may incorporate various knit structures and yarn types that impart specific properties to different regions of upper 120 , and inlaid strands 132 and 152 may extend through the knit structures to impart tension to regions of upper 120 . stretch resistance and operates in conjunction with lace 122 to enhance the fit of footwear 100 .

Construction of knitting machine and feeder

While knitting can be done by hand, commercial production of knitted components is usually done with knitting machines. An example of knitting machine 200 suitable for producing either knitted components 130 and 150 is depicted in FIG. 15 . For purposes of example, knitting machine 200 has the configuration of a V-bed flat knitting machine, although knitted components 130 and 150 or the morphology of knitted components 130 and 150 may be produced by other types of knitting machines.

The knitting machine 200 comprises two needle beds 201 angled relative to each other, forming a V-bed. Each of the needle beds 201 comprises a plurality of individual needles 202 lying on a common plane. That is, the needles 202 from one needle bed 201 lie on a first plane and the needles 202 from the other needle bed 201 lie on a second plane. The first and second planes (ie, the two needle beds 201 ) are angled relative to each other and meet to form an intersection line extending along most of the width of the knitting machine 200 . As described in more detail below, the needles 202 each have a first position in which they are retracted and a second position in which they are extended. In the first position, the needle 202 is spaced from the intersection line where the first and second planes meet. However, in the second position, the needle 202 passes through the intersection where the first and second planes meet.

A pair of rails 203 extend above and parallel to the line of intersection of the needle beds 201 and provide attachment points for a plurality of standard feeders 204 and a combination feeder 220 . Each track 203 has two sides, each of which receives a standard feeder 204 or a combination feeder 220 . As such, knitting machine 200 may include a total of four feeders 204 and 220 . As depicted, the frontmost track 203 includes one combination feeder 220 and one standard feeder 204 on opposite sides, and the rearmost track 203 includes two standard feeders 204 on opposite sides. Although two rails 203 are depicted, further configurations of the knitting machine 200 may incorporate additional rails 203 to provide attachment points for more feeders 204 and 220 .

Due to the action of carriage 205, feeders 204 and 220 move along rail 203 and needle bed 201, thereby supplying yarn to needles 202. In FIG. 15 , yarn 206 is fed to combination feeder 220 via bobbin 207 . More specifically, yarn 206 extends from spool 207 to a plurality of yarn guides 208 , yarn return spring 209 and yarn tensioner 210 before entering combination feeder 220 . Although not depicted, additional spools 207 may be used to feed yarn to feeder 204 .

Standard feeder 204 is commonly used in V-bed flat knitting machines, such as knitting machine 200 . That is, existing knitting machines incorporate standard feeders 204 . Each standard feeder 204 has the ability to supply yarn that is manipulated by the needles 202 to loop, tuck and unknit. In comparison, combination feeder 220 has the capability to feed yarn (eg, yarn 206 ) that is looped, tucked, and unlooped by needle 202 , and combination feeder 220 has the capability to inlay the yarn. Also, the combination feeder 220 has the ability to embed a variety of different wires (eg, filaments, threads, ropes, straps, cables, chains, or yarns). Thus, the combination feeder 220 exhibits greater versatility than each of the standard feeders 204 .

As noted above, combination feeder 220 may be used when inserting yarn or other strands in addition to looping, tucking, and non-looping yarns. Conventional knitting machines that do not incorporate combination feeder 220 can also insert yarn. More specifically, conventional knitting machines equipped with inlay feeders can also inlay yarns. A conventional inlay feeder for a V-bed flat knitting machine includes two components that operate in coordination with each other to inlay the yarn. Each of the components embedded in the feeder is secured to a separate attachment point on two adjacent rails, thereby occupying two attachment points. Whereas a standard feeder 204 alone occupies only one attachment point, an inlay feeder typically occupies two attachment points when it is used to inlay yarn into knitted components. Also, the combination feeder 220 occupies only one attachment point, whereas a conventional insert feeder occupies two attachment points.

Assuming that the knitting machine 200 includes two rails 203, four attachment points are available in the knitting machine 200. If a conventional inlay feeder is used with the knitting machine 200, only two attachment points are available for the standard feeder 204. However, when using combination feeder 220 in knitting machine 200, three attachment points are available for standard feeder 204. Thus, the combination feeder 220 can be used when inserting yarn or other threads, and has the advantage of occupying only one attachment point.

Combination feeder 220 is depicted in FIGS. 16-19 as including a transporter 230 , a feeder arm 240 and a pair of actuation members 250 , respectively. While the majority of combination feeder 220 may be constructed of metallic materials (eg, steel, aluminum, titanium), portions of transporter 230, feeder arm 240, and actuation member 250 may be constructed of, for example, polymers, ceramics, or composite materials. As discussed above, in addition to knitting, tucking, and non-knitting yarns, combination feeder 220 may be used when inserting yarn or other strands. Referring specifically to FIG. 16 , a portion of yarn 206 is depicted to illustrate the manner in which the thread cooperates with combination feeder 220 .

The transporter 230 has a generally rectangular configuration and includes a first covering member 231 and a second covering member 232 connected by four bolts 233 . Cover members 231 and 232 define an interior cavity within which portions of feed arm 240 and actuation member 250 are located. The transporter 230 also includes an attachment element 234 extending outwardly from the first cover member 231 for securing the feeder 220 to one of the tracks 203 . While the configuration of attachment element 234 may vary, attachment element 234 is depicted as including two spaced apart protruding regions forming a dovetail shape, as depicted in FIG. 17 . The opposite dovetail configuration on one of the tracks 203 may extend into the dovetail shape of the attachment element 234 to operatively connect the combination feeder 220 to the knitting machine 200 . It should also be noted that the second cover member 232 forms a centrally located and elongated slot 235 as depicted in FIG. 18 .

Feed arm 240 has a generally elongated configuration that extends through transporter 230 (ie, the cavity between cover members 231 and 232 ) and outwardly from the underside of transporter 230 . The feed arm 240 includes, among other elements, an actuation bolt 241 , a spring 242 , a pulley 243 , a ring 244 and a dispensing area 245 . An actuation bolt 241 extends outwardly from feed arm 240 and is located within a cavity between cover members 231 and 232 . One side of the actuation bolt 241 also sits within the slot 235 in the second cover member 232 as depicted in FIG. 18 . The spring 242 is fixed to the transporter 230 and the feed arm 240 . More specifically, one end of the spring 242 is fixed to the transporter 230 and the opposite end of the spring 242 is fixed to the feed arm 240 . A pulley 243, ring 244 and dispensing area 245 are present on the feed arm 240 to cooperate with the yarn 206 or other wire. Furthermore, pulley 243 , ring 244 and dispensing area 245 are configured to ensure smooth passage of yarn 206 or another thread through combination feeder 220 for reliable supply to needle 202 . Referring again to FIG. 16 , yarn 206 extends around pulley 243 , through loop 244 , and into dispensing area 245 . In addition, the yarn 206 protrudes out of the dispensing tip 246 (which is the end region of the feed arm 240 ) in order to be then supplied to the needle 202 .

Each of the actuation members 250 includes an arm 251 and a plate 252 . In many configurations of the actuation member 250, each arm 251 is formed as a one-piece element with one of the plates 252 . The arm 251 is located outside and on the upper side of the transporter 230 , while the plate 252 is located inside the transporter 230 . Each of the arms 251 has an elongated configuration defining an outer end 253 and an opposing inner end 254 , and the arms 251 are positioned to define a space 255 between the two inner ends 254 . That is, the arms 251 are spaced apart from each other. Plate 252 has a generally planar configuration. Referring to FIG. 19 , each of the plates 252 defines a hole 256 with a beveled edge 257 . Also, the actuation bolt 241 of the feed arm 240 extends into each hole 256 .

The configuration of combination feeder 220 discussed above provides a structure that facilitates translational movement of feed arm 240 . As discussed in more detail below, translational movement of the feed arm 240 selectively positions the dispensing tip 246 at a position above or below the line of intersection of the needle beds 201 . That is, the dispensing tip 246 has the ability to reciprocate across the line of intersection of the needle bed 201 . The advantage of the translational movement of the feed arm 240 is that (a) the combined feeder 220 supplies the yarn 206 for knitting, tucking and non-knitting when the dispensing tip 246 is positioned above the line of intersection of the needle beds 201, And (b) when the dispensing tip 246 is positioned below the line of intersection of the needle beds 201 , the combination feeder 220 supplies the yarn 206 or another thread for embedding. Also the feed arm 240 reciprocates between two positions depending on the manner in which the combination feeder 220 is used.

In reciprocating across the line of intersection of the needle beds 201, the feed arm 240 translates from the retracted position to the extended position. When in the retracted position, the dispensing tip 246 is located above the line of intersection of the needle beds 201 . When in the extended position, the dispensing tip 246 is located below the line of intersection of the needle beds 201 . Dispensing tip 246 is closer to transporter 230 when feed arm 240 is in the retracted position than when feed arm 240 is in the extended position. Similarly, dispensing tip 246 is farther from transporter 230 when feed arm 240 is in the extended position than when feed arm 240 is in the retracted position. In other words, the dispensing tip 246 moves away from the transporter 230 when in the extended position, and the dispensing tip 246 moves closer to the transporter 230 when in the retracted position.

Arrow 221 is positioned adjacent allocation area 245 for purposes of reference in FIGS. 16-20C and in additional figures discussed thereafter. Feed arm 240 is in the retracted position when arrow 221 is pointing upwards or towards transporter 230 . Feed arm 240 is in the extended position when arrow 221 points downward or away from transporter 230 . Therefore, the position of the feed arm 240 can be easily determined by referring to the position of the arrow 221 .

The natural state of the feed arm 240 is the retracted position. That is, the feed arm remains in the retracted position when no appreciable force is applied to the area of the combination feeder 220 . 16-19, for example, no force or other influence is shown interacting with combination feeder 220, and feed arm 240 is in a retracted position. However, translational movement of the feed arm 240 can occur when sufficient force is applied to one of the arms 251 . More specifically, translational movement of feed arm 240 occurs when sufficient force is applied to one of outer ends 253 and directed toward space 255 . Referring to Figures 20A and 20B, a force 222 is applied to one of the outer ends 253 and directed toward the space 255, and the feed arm 240 is shown translating to the extended position. However, when force 222 is removed, feed arm 240 will return to the retracted position. It should also be noted that FIG. 20C depicts force 222 acting on inner end 254 and directed outward, with feed arm 240 remaining in the retracted position.

As discussed above, feeders 204 and 220 move along rail 204 and needle bed 201 due to the action of carriage 205 . More specifically, drive bolts in bracket 205 contact feeders 204 and 220 to push feeders 204 and 220 along needle bed 201 . With regard to the combination feeder 220 , the drive bolt may contact either one of the outer ends 253 or one of the inner ends 254 to push the combination feeder 220 along the needle bed 201 . When the drive bolt contacts one of the outer ends 253 , the feed arm 240 translates to the extended position and the dispensing tip 246 passes below the line of intersection of the needle bed 201 . When the drive bolt contacts one of the inner ends 254 and is within the space 255 , the feed arm 240 remains in the retracted position and the dispensing tip 246 is above the line of intersection of the needle beds 201 . Thus, the area of the carriage 205 that contacts the combination feeder 220 determines whether the feed arm 240 is in the retracted or extended position.

The mechanical action of combination feeder 220 will now be discussed. 19-20B depict the combination feeder 220 with the first cover member 231 removed, exposing the components within the cavity in the transporter 230 . The manner in which force 222 induces translation of feed arm 240 may be apparent by comparing FIG. 19 with FIGS. 20A and 20B . When force 222 acts on one of outer ends 253 , one of actuation members 250 slides in a direction perpendicular to the length of feed arm 240 . That is, one of the actuation members 250 slides horizontally in FIGS. 19-20B . Movement of one of the actuation members 250 causes the actuation bolt 241 to engage one of the angled edges 257 . Assuming the movement of the actuation member 250 is constrained to a direction perpendicular to the length of the feed arm 240, the actuation bolt 241 rolls or slides against the sloped edge 257 and induces the feed arm 240 to translate to the extended position. When force 222 is removed, spring 242 pulls feed arm 240 from the extended position to the retracted position.

Based on the above discussion, combination feeder 220 reciprocates between a retracted position and an extended position, depending on whether the yarn or other thread is being used for looping, tucking, or non-looping, or for embedding. Combination feeder 220 has a configuration in which application of force 222 induces translation of feed arm 240 from the retracted position to the extended position, and removal of force 222 induces translation of feed arm 240 from the extended position to the retracted position. That is, combination feeder 220 has a configuration in which removal and application of force 222 causes feed arm 240 to reciprocate between opposite sides of needle bed 201 . In general, outer end 253 may be considered an actuation region that induces movement of feed arm 240 . In further configurations of the combination feeder 220, the actuation zone may be at other locations or may respond to other stimuli to induce movement of the feeder arm 240. For example, the actuation region may be an electrical input coupled to a servo mechanism that controls the movement of the feed arm 240 . Accordingly, combination feeder 220 may have a variety of configurations that operate in the same general manner as the configurations discussed above.

weaving process

The manner in which knitting machine 200 is operated to manufacture knitted components will now be discussed in detail. Also, the following discussion will illustrate the operation of combination feeder 220 during the knitting process. Referring to FIG. 21A , a portion of a knitting machine 200 including a plurality of needles 202 , a track 203 , a standard feeder 204 and a combination feeder 220 is depicted. The combination feeder 220 is fixed to the front side of the track 203 , while the standard feeder 204 is fixed to the rear side of the track 203 . Yarn 206 passes through combination feeder 220 and one end of yarn 206 extends outwardly from dispensing tip 246 . While yarn 206 is depicted, any other thread (eg, a filament, thread, rope, belt, cable, chain, or yarn) may be passed through combination feeder 220 . Another yarn 211 passes through standard feeder 204 and forms part of knitted component 260 , and the loop of yarn 211 forming the uppermost course in knitted component 260 is held by a hook on the end of needle 202 .

The knitting process discussed herein involves the formation of knitted component 260 , which may be any knitted component, including knitted components similar to knitted components 130 and 150 . For purposes of discussion, only a relatively small portion of knitted component 260 is shown in the figures to allow the knitted structure to be illustrated. Also, the size or proportions of various elements of knitting machine 200 and knitted component 260 may be increased to better illustrate the knitting process.

The standard feeder 204 includes a feed arm 212 with a dispensing tip 213 . The feed arm 212 is angled to position the dispensing tip 213 in a position (a) centered between the needles 202 and (b) above the line of intersection of the needle beds 201 . Figure 22A depicts a schematic cross-sectional view of this configuration. It should be noted that the needles 202 lie on different planes, which are angled relative to each other. That is, the needles 202 from the needle bed 201 are located on different planes. Needles 202 each have a first position and a second position. In a first position (shown in solid lines), needle 202 is retracted. In the second position (shown in phantom), the needle 202 is extended. In the first position, the needles 202 are spaced apart from the intersection line where the plane on which the needle bed 201 lies meets. In the second position, however, the needles 202 protrude and pass through the intersection where the planes on which the needle beds 201 lie meet. That is, the needles 202 cross each other when extended to the second position. It should be noted that the dispensing tip 213 is located above the intersection of the planes. In this position, the dispensing tip 213 supplies the yarn 211 to the needle 202 for loop forming, tuck and non-loop forming purposes.

Combination feeder 220 is in the retracted position, as evidenced by the orientation of arrow 221 . Feed arm 240 extends downward from transporter 230 to position dispensing tip 246 in a position (a) centered between needles 202 and (b) above the intersection line of needle beds 201 . Figure 22B depicts a schematic cross-sectional view of this configuration. It should be noted that dispensing tip 246 is positioned in the same relative position as dispensing tip 213 in Figure 22A.

Referring now to FIG. 21B , standard feeder 204 is moved along track 203 and a new course is formed from yarn 211 in knitted component 260 . More specifically, needle 202 pulls segments of yarn 211 through the stitches of a previous course to form a new course. Thus, courses are added to knitted component 260 by moving standard feeder 204 along needle 202 , allowing needle 202 to manipulate yarn 211 and form additional loops from 211 .

Continuing with the knitting process, the feed arm 240 is now translated from the retracted position to the extended position, as depicted in Figure 21C. In the extended position, the feed arm 240 extends downwardly from the transporter 230 to position the dispensing tip 246 in a position (a) centered between the needles 202 and (b) below the line of intersection of the needle beds 201 . Figure 22C depicts a schematic cross-sectional view of this configuration. It should be noted that due to the translational movement of the feed arm 240, the dispensing tip 246 is positioned below the location of the dispensing tip 246 in FIG. 22B.

Referring now to FIG. 21D , combination feeder 220 is moved along track 203 and yarn 206 is positioned between the loops of knitted component 260 . That is, the yarn 206 is positioned in front of some loops and behind other loops in an alternating fashion. Also, the yarn 206 is located in front of the loops held by the needles 202 from one needle bed 201 and the yarn 206 is located behind the loops held by the needles 202 from the other needle bed 201 . It should be noted that the feed arm 240 remains in the extended position so as to place the yarn 206 in the area below the line of intersection of the needle bed 201 . This effectively places yarn 206 within the course newly formed by standard feeder 204 in Figure 21B.

To complete embedding of yarn 206 into knitted component 260, standard feeder 204 is moved along track 203 to form a new course from yarn 211, as depicted in Figure 21E. By forming new courses, yarns 206 are effectively woven or otherwise integrated into the structure of knitted component 260 . At this stage, the feed arm 240 can also translate from the extended position to the retracted position.

21D and 21E show the movement of feeders 204 and 220 along track 203, respectively. That is, FIG. 21D shows a first movement of combination feeder 220 along track 203 , and FIG. 21E shows a second and subsequent movement of standard feeder 204 along track 203 . In many knitting processes, feeders 204 and 220 are effectively movable simultaneously to inlay yarn 206 and form a new course from yarn 211 . However, combination feeder 220 moves ahead or ahead of standard feeder 204 to position yarn 206 prior to forming a new course from yarn 211 .

The general knitting process outlined in the discussion above provides an example of the manner in which inlaid strands 132 and 152 may be located in knit elements 131 and 151 . More specifically, knitted components 130 and 150 may be formed by utilizing combination feeder 220 to efficiently insert inlaid strands 132 and 152 into knit element 131 . In view of the reciprocating action of the feed arm 240, the inlaid wire may be located within a previously formed course before forming a new course.

Continuing with the knitting process, the feed arm 240 is now translated from the retracted position to the extended position, as depicted in Figure 21F. Composition feeder 220 is then moved along track 203 and yarn 206 is positioned between the loops of knitted component 260, as depicted in Figure 21G. This effectively places the yarn 206 within the course formed by the standard feeder 204 in Figure 21E. To complete embedding of yarn 206 into knitted component 260, standard feeder 204 is moved along track 203 to form a new course from yarn 211, as depicted in Figure 21H. By forming new courses, yarns 206 are effectively woven or otherwise integrated into the structure of knitted component 260 . At this stage, the feed arm 240 can also translate from the extended position to the retracted position.

Referring to Figure 21H, the yarn 206 forms a coil 214 between two embedded segments. In the discussion of knitted component 130 above, it should be noted that inlaid strand 132 repeatedly exits knit element 131 at peripheral edge 133 and then re-enters knit element 131 at another location on coil, as seen in Figures 5 and 6. Coil 214 is formed in a similar manner. That is, loop 214 is formed where yarn 206 exits the knit structure of knitted component 260 and then re-enters the knit structure.

As discussed above, standard feeder 204 has the capability to supply yarn (eg, yarn 211 ) that is manipulated by needle 202 to loop, tuck, and un-loop. However, combination feeder 220 has the ability to supply yarn (eg, yarn 206 ) that needle 202 loops, tucks, or does not loop, as well as inlays the yarn. The above discussion of the knitting process describes the manner in which combination feeder 220 engages the yarn while in the extended position. Combination feeder 220 can also supply yarn for knitting, tucking and non-knitting while in the retracted position. 21I, for example, combination feeder 220 moves along track 203 while in a retracted position and forms a course of knitted component 260 while in a retracted position. Thus, the combination feeder 220 can supply the yarn 206 for knitting, tucking, non-knitting, and embedding purposes by reciprocating the feeding arm 240 between the retracted position and the extended position. Thus, an advantage of the combination feeder 220 that can be used for many more functions than the standard feeder 204 relates to its versatility in supplying yarn.

The ability of the combination feeder 220 to supply yarn for knitting, tucking, non-knitting and inlaying is based on the reciprocating action of the feeding arm 240 . Referring to FIGS. 22A and 22B , dispensing tips 213 and 246 are in the same position relative to needle 220 . As such, both feeders 204 and 220 can supply yarn for knitting, tucking, and non-knitting. Referring to Figure 22C, dispensing tip 246 is in a different position. In this manner, combination feeder 220 may supply yarn or other wire for embedding. Thus, an advantage of the combination feeder 220 relates to its versatility in supplying yarn that can be used for knitting, tucking, non-knitting, and embedding.

Further Weaving Process Considerations

Additional aspects related to the weaving process will now be discussed. Referring to FIG. 23 , upper course of knitted component 260 is formed from both yarns 206 and 211 . More specifically, the left side of the course is formed by yarn 211 and the right side of the course is formed by yarn 206 . Additionally, yarn 206 is embedded in the left side of the course. To create this configuration, standard feeder 204 may initially form the left side of the course from yarn 211 . Combination feeder 220 then places yarn 206 on the right side of the course while feeder arm 240 is in the extended position. Subsequently, the feed arm 240 is moved from the extended position to the retracted position and forms the right side of the course. Thus, the combination feeder can embed the yarn in a portion of a course and then supply the yarn for the purpose of weaving the remainder of the course.

FIG. 24 depicts the construction of a knitting machine 200 including four combination feeders 220 . As discussed above, combination feeder 220 has the capability to supply yarn (eg, yarn 206 ) for knitting, tucking, non-knitting, and embedding. In view of this versatility, standard feeder 204 may be replaced by multiple combination feeders 220 in knitting machine 200 or various conventional knitting machines.

FIG. 8B depicts the construction of knitted component 130 in which two yarns 138 and 139 are cored to form knit element 131 and inlaid strand 132 extends through knit element 131 . The general weaving process discussed above can also be used to form this configuration. As depicted in FIG. 15 , knitting machine 200 includes multiple standard feeders 204 , and two of standard feeders 204 may be used to form knit element 131 , with combination feeder 220 storing inlaid strand 132 . Accordingly, the knitting process discussed above in FIGS. 21A-21I can be improved by adding another standard feeder 204 to supply additional yarn. In configurations where yarn 138 is a non-fusible yarn and yarn 139 is a fusible yarn, knitted component 130 may be heated after the knitting process to melt knitted component 130 .

The portion of knitted component 260 depicted in FIGS. 21A-21I has the construction of a rib knit fabric with regular and uninterrupted courses and wales. That is, portions of knitted component 260 do not have any mesh areas like mesh knit regions 163 - 165 or simulated mesh regions like simulated mesh knit regions 166 and 167 , for example. To form mesh knitting zones 163-165 in either of knitted components 150 and 260, racked needle beds 201 are used and front to back needle beds 201 and back to front needle beds are used in different rack positions. 201 combinations of suture coils for transfer. To form simulated mesh areas similar to simulated mesh knitting zones 166 and 167, a combination of rack needle beds and transfer of sewing loops from front to rear needle beds 201 is used.

The courses in the knitted component are generally parallel to one another. Given that most of inlaid strand 152 follows a course in knit element 151, this may imply that segments of inlaid strand 152 should be parallel to each other. Referring to FIG. 9 , for example, some segments of inlaid wire 152 extend between edges 153 and 155 and other segments extend between edges 153 and 154 . Accordingly, the individual segments of inlaid wire 152 are non-parallel. The concept of forming a dart can be used to give the inlaid lines 152 this non-parallel configuration. More specifically, courses of varying lengths may be formed to effectively insert wedge-shaped structures between segments of inlaid wire 152 . Accordingly, structures formed in knitted component 150 in which the individual segments of inlaid strands 152 are non-parallel may be accomplished through the process of darting.

While the majority of inlaid strand 152 follows courses in knit element 151 , some segments of inlaid strand 152 follow wales. For example, segments of inlaid strand 152 adjacent and parallel to inner edge 155 follow the wales. This can be accomplished by first inserting a segment of inlaid strand 152 along a portion of the course and to the point where inlaid strand 152 is intended to follow the wale. The inlaid thread 152 is then returned to remove the inlaid thread 152 and the course is complete. As the subsequent course is formed, the inlaid strand 152 is returned again to remove the inlaid strand 152 at the point where it is intended to follow the wale, and the course is complete. This process is repeated until inlaid strand 152 extends the desired distance along the wale. A similar concept may be used for the portion of inlaid strand 132 in knitted component 130 .

A number of procedures may be used to reduce relative movement between (a) knit element 131 and inlaid strand 132 or (b) knit element 151 and inlaid strand 152 . That is, a number of procedures may be used to prevent inlaid strands 132 and 152 from sliding, threading, pulling out, or otherwise dislodging from knit elements 131 and 151 . For example, fusing one or more yarns formed of a thermoplastic polymer material to inlaid strands 132 and 152 may prevent movement between inlaid strands 132 and 152 and knit elements 131 and 151 . In addition, inlaid strands 132 and 152 may be secured to knitting elements 131 and 151 as they are periodically fed to the knitting needles as tuck elements. That is, inlaid strands 132 and 152 may be formed into tuck stitches at points along their length (e.g., once every centimeter) in order to secure inlaid strands 132 and 152 to knit elements 131 and 151 and Movement of inlaid wires 132 and 152 is prevented.

Following the knitting process described above, various operations may be performed to enhance the performance of either knitted components 130 and 150 . For example, a water repellent coating or other water repellent treatment may be used to limit the ability of the woven structure to absorb and retain water. As another example, knitted components 130 and 150 may be retorted to improve resiliency and cause melting of the yarns. As discussed above with respect to FIG. 8B , yarn 138 may be a non-fusible yarn and yarn 139 may be a fusible yarn. Yarns 139 may melt or otherwise soften to transition from a solid state to a softened or liquid state when cooked, and then transition from the softened or liquid state to a solid state when sufficiently cooled. Thus, yarn 139 may be used, for example, to (a) join one portion of yarn 138 to another portion of yarn 138, (b) join yarn 138 and inlaid thread 132 to each other, or (c) join another Elements (eg, logos, trademarks, and placards with cautionary instructions and material information) are attached to knitted component 130 . Accordingly, a cooking process may be used to induce melting of the yarns in knitted components 130 and 150 .

While procedures associated with the retort process can vary widely, one method involves securing one of knitted components 130 and 150 to a jig during the retort process. An advantage of securing one of knitted components 130 and 150 to a jig is that the resulting dimensions of particular regions of knitted components 130 and 150 can be controlled. For example, pins on the clamp may be positioned to hold an area corresponding to perimeter edge 133 of knitted component 130 . By maintaining the specific dimensions of peripheral edge 133 , peripheral edge 133 will have the correct length for the portion of the lasting process that connects upper 120 to sole structure 110 . Accordingly, the secured regions of knitted components 130 and 150 may be used to control the resulting dimensions of knitted components 130 and 150 after the retort process.

The knitting process described above for forming knitted component 260 may be applied to manufacture knitted components 130 and 150 for footwear 100 . The knitting process can also be applied to make a variety of other knitted components. That is, a knitting process utilizing one or more combination feeders or other reciprocating feeders may be used to form a variety of knitted components. As such, knitted components formed by the above-described knitting process or similar processes may also be used in other types of clothing (e.g., shirts, pants, socks, jackets, underwear), athletic equipment (e.g., golf bags, baseballs, and Soccer gloves, soccer caps), containers (e.g., backpacks, bags), and upholstery for furniture (e.g., chairs, sofas, car seats). Woven components can also be used in bed covers (eg, sheets, blankets), table covers, towels, flags, tents, sails, and parachutes. Woven components can be used as industrial fabrics for industrial purposes (including structures for automotive and aerospace applications), filter materials, medical fabrics (e.g., bandages, swabs, implants), geotextiles for reinforcing embankments, Agricultural fabrics for crop protection, and industrial clothing for protection or insulation from heat and radiation. Accordingly, knitted components formed by the knitting processes described above, or similar processes, may be incorporated into a variety of products for both personal and industrial purposes.

The invention is disclosed above and in the drawings with reference to various configurations. The purpose of the disclosure, however, is to provide an example of the various features and concepts related to the invention, not to limit the scope of the invention. Those skilled in the relevant art will appreciate that numerous changes and modifications may be made to the constructions described above without departing from the scope of the invention as defined in the appended claims.

Claims (40)

CLAIMS 1. An article of footwear having an upper and a sole structure secured to the upper, the upper comprising a knitted component comprising: A first yarn and a second yarn woven together to form a region of the knitted component, the first yarn being formed at least in part from a thermoplastic polymer material , and the second yarn is formed entirely of at least one of a thermosetting polymer material and a natural fiber; and An inlaid strand extends through the region of the knitted component. 2. The article of footwear recited in claim 1, wherein the first yarn is fused to the second yarn. 3. The article of footwear recited in claim 1, wherein the first yarn is fused to the inlaid strand. 4. The article of footwear recited in claim 1, wherein the inlaid strand extends from a throat region of the upper to a lower region of the upper. 5. The article of footwear according to claim 4, wherein the knitted component defines a plurality of apertures in the throat region for receiving a shoelace, and the inlaid strand extends around the apertures. 6. The article of footwear recited in claim 1, further comprising a third yarn incorporated into another region of the knitted component, the third yarn stretching at least 100%. 7. The article of footwear according to claim 6, wherein said knitted component includes a pair of at least partially coextensive knitted layers formed of a single knit structure, said third yarn being incorporated into at least one of said layers. In one, and the knitted component includes a plurality of floating yarns positioned between the knit layers and extending in a direction substantially parallel to the knit layers. 8. The article of footwear recited in claim 7, wherein the knitted layer and the floating yarns are positioned adjacent an ankle opening of the upper. 9. The article of footwear recited in claim 1, wherein the inlaid strand has a greater thickness than the first yarn and the second yarn. 10. The article of footwear according to claim 1 , wherein the knitted component is formed of a single knit structure and extends along a lateral side of the upper, along a medial side of the upper, at the footwear on the forefoot region of the upper, and around the heel region of the upper. 11. An article of footwear having an upper and a sole structure secured to the upper, the upper comprising a knitted component comprising: a fusible yarn and a non-fusible yarn woven together to form a plurality of intermeshing loops defining courses and wales; and An inlaid thread extends along at least one of the courses. 12. The article of footwear according to claim 11, wherein the fusible yarn is fused to the non-fusible yarn. 13. The article of footwear according to claim 11, wherein the fusible yarn is fused to the inlaid strand. 14. The article of footwear of claim 11 , wherein the fusible yarn is at least partially formed from a thermoplastic polymer material, and the non-fusible yarn is substantially composed of a thermoset polymer material and natural fibers. at least one formation of . 15. The article of footwear according to claim 11, wherein the fusible yarns are formed at least in part from thermoplastic polyester and the non-fusible yarns are formed substantially from thermoset polyester. 16. An article of footwear having an upper and a sole structure secured to the upper, the upper comprising: a knit element defining an outer surface of the upper and a portion of an opposing inner surface of the upper defining a cavity for receiving a foot, the knit element extending from a throat of the upper a lower region extending to a lower region of the upper, and the knit element defines a plurality of apertures within the throat region; an inlaid strand extending through the knit element from the throat region to the lower region, the inlaid strand extending at least partially around the aperture in the throat region, and the inlaid strand located at the between the outer surface and the inner surface in the throat region; and A shoelace extending through the hole. 17. The article of footwear according to claim 16, wherein the inlaid strand iteratively extends from the throat region to the lower region. 18. The article of footwear according to claim 16, wherein a segment of the inlaid strand extends upwardly from the lower region to a first side of one of the apertures, the inlaid strand partially surrounding the said one of said holes extends to an opposite second side of said one of said holes, and said inlaid wire extends downwardly from said second side of said one of said holes to the lower area. 19. The article of footwear recited in claim 16, wherein a portion of the inlaid strand extends through the knit element from the throat region to a heel region of the footwear. 20. The article of footwear according to claim 19, wherein the portion of the inlaid strand extends to an edge of the heel region. 21. The article of footwear recited in claim 16, wherein the knitted component is formed of a single knit structure and is along a lateral side of the upper, along a medial side of the upper, at the on the forefoot region of the upper, and around the heel region of the upper. 22. The article of footwear recited in claim 16, wherein the inlaid strand extends from the throat region to the lower region in the lateral side and the medial side. 23. The article of footwear recited in claim 16, wherein a portion of the knit element forming the outer surface exposes segments of the inlaid strand between the throat region and the lower region. 24. The article of footwear recited in claim 23, wherein a portion of the knit element forming the interior surface covers substantially all of the inlaid strand between the throat region and the lower region. 25. An article of footwear having an upper and a sole structure secured to the upper, the upper comprising: a knit element forming an outer surface of the upper and a portion of an opposing inner surface of the upper defining a cavity for receiving a foot, the knit element extending from a throat of the upper the upper region extends to a lower region of the upper; and an inlaid strand extending through the knit element from the throat region to the lower region, wherein a portion of the knit element forming the outer surface exposes segments of the inlaid strand in the region between the throat region and the lower region, and a portion of the knit element forming the inner A portion of the surface covers substantially all of the inlaid wire between the throat region and the lower region. 26. The article of footwear according to claim 25, wherein the knit element includes an aperture in the throat region, and a lace extends through the aperture. 27. The article of footwear recited in claim 26, wherein the inlaid strand extends at least partially around the aperture in the throat region, and the inlaid strand is located on the outer edge of the throat region. surface and the inner surface. 28. The article of footwear according to claim 26, wherein the inlaid strand extends from the lower region to a first side of the aperture, the inlaid strand extending partially around the aperture to an opposite side of the aperture. and the inlaid wire extends from the second side of the aperture to the lower region. 29. The article of footwear recited in claim 25, wherein the knit element includes a yarn at least partially formed from a thermoplastic polymer material, the yarn being fused to the inlaid strand to incorporate the The yarn is connected to the inlaid thread. 30. An article of footwear having an upper and a sole structure secured to the upper, the upper comprising: a first knit layer forming at least a portion of the outer surface of the upper; A second knit layer formed of a unitary knit structure with the first knit layer, the second knit layer positioned adjacent to the first knit layer and at least partially coextensive with the first knit layer to define a tube between the first braid layer and the second braid layer; and a plurality of floating yarns located within the tube and extending in a direction substantially parallel to the first braid layer and the second braid layer, Wherein the first knit layer and the second knit layer are at least partially formed from yarns stretched at least 100%. 31. The article of footwear according to claim 30, wherein the footwear defines an interior cavity for receiving a foot and provides an ankle opening into the cavity, the first knitted layer, the second A knit layer and the floating yarns are positioned adjacent to the ankle opening. 32. The article of footwear recited in claim 30, wherein the first knit layer, the second knit layer, and the floating yarns are located on a medial side of the upper and a lateral side of the upper . 33. The article of footwear recited in claim 30, wherein the first knitted layer, the second knitted layer, and a knitted component are formed from a single knitted structure, the knitted component along the lateral side of the upper , along a medial side of the upper, over a forefoot region of the upper, and around a heel region of the upper. 34. The article of footwear according to claim 30, wherein substantially all of the first knit layer is formed from the yarn, and the second knit layer is formed from the yarn and an additional yarn. 35. An article of footwear having an upper and a sole structure secured to the upper, the upper comprising: a knit element comprising at least one yarn forming a plurality of intermeshed loops, the knit element defining an exterior surface of the upper and a portion of an opposing interior surface of the upper, the interior surface defining a a foot-receiving cavity, the knit element having the construction of a single layer of fabric forming part of the outer surface and the inner surface; and An inlaid strand extends through the knit element and is located between the outer surface and the inner surface. 36. The article of footwear recited in claim 35, wherein the knitted structure includes a plurality of intermeshing loops formed from the yarns and defining courses and wales, the embedded A line extends along one of the courses. 37. The article of footwear recited in claim 35, wherein the knit element extends from a throat region of the upper to a lower region of the upper, and the inlaid strand extends from the throat region to the lower area. 38. The article of footwear recited in claim 37, wherein the knit element defines an aperture in the throat region, and the inlaid strand extends at least partially around the aperture. 39. The article of footwear recited in claim 37, wherein a portion of the knit element forming the outer surface exposes segments of the inlaid strand between the throat region and the lower region. 40. The article of footwear recited in claim 39, wherein a portion of the knit element forming the interior surface covers substantially all of the inlaid strand between the throat region and the lower region.

Images